JP4099414B2 - Moisture detector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a moisture detection apparatus that detects moisture in a processing object containing moisture, for example, garbage.
[0002]
[Prior art]
For example, when the object to be treated is garbage, there is a method of fermenting and decomposing the garbage using aerobic microorganisms, and the humidity or moisture in the garbage can be easily activated so that the microorganisms can be activated easily. It is necessary to detect garbage and maintain garbage at a predetermined humidity.
[0003]
For example, Patent Document 1 discloses a garbage disposal apparatus that treats garbage using microorganisms.
[0004]
An outline of the garbage disposal apparatus disclosed in Patent Document 1 will be described with reference to FIG.
[0005]
A stirring blade 2 is rotatably provided inside the garbage disposal tank 1, and the stirring blade 2 is rotated by a motor 4 via a stirring shaft 3. A garbage input port 5 is provided on the upper surface of the garbage processing tank 1, and a heater 7 having a temperature sensor 6 is provided on the bottom surface of the garbage processing tank 1.
[0006]
Garbage is thrown in from the dust inlet 5, the stirring blade 2 is rotated by the motor 4 through the stirring shaft 3, and the garbage is stirred by the stirring blade 2. Further, the garbage is heated by the heater 7 so that the microorganisms are easily activated. The heating temperature is detected by the temperature sensor 6 and is set to an appropriate heating temperature.
[0007]
When raw garbage is decomposed by microorganisms, the stirring blade 2 is stopped and the processed residue is discharged.
[0008]
[Patent Document 1]
JP 2000-288514 A
[Problems to be solved by the invention]
In a garbage disposal device that uses aerobic microorganisms, it is necessary to create an environment in which microorganisms can be activated easily in order to perform stable garbage disposal. Appropriate humidity and sufficient air (oxygen) are required.
[0010]
In the conventional garbage processing apparatus described above, the garbage is heated by the heater 7 to an appropriate temperature for activating microorganisms, and the garbage is stirred by the stirring blade 2 so that sufficient air is supplied. The temperature can be controlled relatively by a heater with a temperature thermostat, and the air can be controlled by a blower or the like. However, the conventional garbage processing apparatus does not include a moisture detection device that detects the moisture of the garbage, and has not been considered for processing in a moisture state in which microorganisms are easily activated.
[0011]
The amount of raw garbage processed and the water content of the raw garbage to be processed differ each time it is processed. If only the temperature is controlled, the moisture may be excessive or dry, and microorganisms will be active. It could not be said that the environment that is easy to convert was made stably. If the amount of water is excessive during the treatment, the supply of oxygen to the fungus bed is reduced, and the fungus bed is changed to cause a reduction in treatment capacity and generation of malodor. Furthermore, when the drying is over, there is a problem that the fine powder of the fungus bed is scattered and the piping system and the deodorizing system are clogged.
[0012]
In view of such circumstances, the present invention provides a moisture detection device that detects moisture in raw garbage so that the state in which aerobic microorganisms are activated can be stably maintained.
[0013]
[Means for Solving the Problems]
The present invention includes a temperature detection unit and a heater that heats the temperature detection unit, and can detect a temperature that is not heated by the heater and a temperature that is heated by the heater, and the detected temperature deviation. The present invention relates to a moisture detection device configured to detect a moisture value based on the above.
[0014]
The present invention also includes a first temperature sensor in which the temperature detection unit is enclosed and directly contacts the processing target, and a second temperature sensor in which the temperature detection unit and the heater are sealed and directly contact the processing target , The present invention relates to a moisture detection apparatus configured to detect a moisture value by comparing a temperature detected by the first temperature sensor with a temperature detected by the second temperature sensor in a state heated by the heater.
[0015]
Furthermore, the present invention further includes an arithmetic processing unit in which a moisture value corresponding to the temperature deviation is stored, and the temperature deviation between the temperature not heated by the heater and the temperature heated by the heater is calculated. The present invention relates to a moisture detector that calculates and detects a moisture value based on the temperature deviation.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 shows an outline of the configuration of a moisture detection device 40 according to the present invention.
[0018]
In FIG. 1, reference numeral 35 denotes a first temperature sensor, 36 denotes a second temperature sensor, and the first temperature sensor 35 and the second temperature sensor 36 constitute a moisture detection sensor 37.
[0019]
The first temperature sensor 35 is formed by sealing a temperature detection unit such as a thermocouple in a liquid-tight cylinder made of wear-resistant and impact-resistant material such as stainless steel, and the second temperature sensor 36. Is a tube made of stainless steel or other corrosion-resistant and impact-resistant and impact-resistant material, and a temperature detection unit such as a thermocouple and an internal heater 38 are sealed in a liquid-tight manner. The moisture detection sensor 37 detects the temperature of the first temperature sensor 35 and the second temperature sensor 36 with the internal heater 38 generating heat, and detects the moisture in the garbage by the temperature difference between the two temperature sensors. To do.
[0020]
Temperature detection signals from the first temperature sensor 35 and the second temperature sensor 36 are input to an arithmetic processing unit 43 represented by a CPU via signal processing units 41 and 42, respectively. A storage unit 44 is connected to the arithmetic processing unit 43. A semiconductor memory such as an EEPROM is used for the storage unit 44.
[0021]
The storage unit 44 stores the relationship (moisture value table) between the temperature difference detected by the first temperature sensor 35 and the second temperature sensor 36 according to the type of processing object, for example, garbage, and the moisture value. Yes. The moisture value table is obtained in advance by experiments or the like.
[0022]
When moisture detection is performed, the first temperature sensor 35 and the second temperature sensor 36 are provided so as to be in direct contact with the object to be processed, and the internal heater 38 is energized so that the heat generation amount becomes a predetermined value. The
[0023]
Temperature detection is performed by the first temperature sensor 35 and the second temperature sensor 36 in a state where the internal heater 38 generates heat. The temperature detection signals from the first temperature sensor 35 and the second temperature sensor 36 are subjected to signal processing such as amplification, A / D conversion, and non-linear correction in the signal processing units 41 and 42, and the arithmetic processing unit 43. Is sent out.
[0024]
Due to the heat generated by the internal heater 38, the temperature detected by the second temperature sensor 36 is higher than the temperature detected by the first temperature sensor 35. Further, assuming that the amount of heat generated from the internal heater 38 is constant, the temperature rise differs according to the moisture value contained in the object to be processed.
[0025]
The arithmetic processing unit 43 calculates a temperature difference from the deviation of both signals, and compares it with a moisture value table stored in the storage unit 44 to calculate a moisture value corresponding to the temperature difference.
[0026]
The moisture value obtained by the calculation is output from the calculation processing unit 43 as a moisture detection signal.
[0027]
Next, the case where the said moisture detection apparatus 40 is used for the garbage processing apparatus is demonstrated.
[0028]
FIG. 2 shows the appearance of the present embodiment, and FIG. 3 shows the internal mechanism.
[0029]
A garbage disposal mechanism 11 is housed inside the housing 10. A gas processing unit 12 is provided at the top of the housing 10, and an operation unit 13 is provided at the front surface of the housing 10. An intake port (not shown) is provided at a required position on the upper surface or side surface of the housing 10, and air sucked from the blower 48 (see FIG. 4) through the intake port is introduced into the housing 10. It is supposed to be blown.
[0030]
The gas processing unit 12 includes a heater (not shown), a catalyst such as platinum (not shown), heats the gas generated in the garbage processing mechanism unit 11, and allows the catalyst to pass through. Deodorized and detoxified, and discharged from the exhaust tube 14.
[0031]
The operation unit 13 is provided with an operation switch 15 such as a start switch, a stop switch, a selection switch for selecting an operation state in accordance with the state of garbage, a display unit 16 for displaying the operation state, and the like.
[0032]
The garbage processing mechanism 11 will be described with reference to FIG.
[0033]
Mounts 18 and 19 are erected on the base 17. A bearing 21 is provided at the upper end of one of the mounts 18, and bearings 22 and 23 are provided at the upper end of the other mount 19.
[0034]
A garbage disposal tank 24 is disposed between the gantry 18 and the gantry 19, and both ends of the garbage disposal tank 24 are attached to the gantry 18 and the gantry 19, respectively.
[0035]
A stirring shaft 25 penetrating the garbage processing tank 24 in the horizontal direction is provided, and one end portion of the stirring shaft 25 is rotatably supported by the bearing 21, and the other end portion of the stirring shaft 25 is connected to the bearings 22, 23 is rotatably supported. A required number of blade support rods 26 are fixed radially from the stirring shaft 25, and a spiral stirring blade 27 is fixed to the blade support rod 26.
[0036]
The portion of the stirring shaft 25 that penetrates the garbage disposal tank 24 is liquid-tight by a seal 28. The other end of the stirring shaft 25 extends further from the bearing 23, and a driven sprocket 29 is fitted to the extended end.
[0037]
A stirring motor 31 is attached to the base 17 so as to be housed in the gantry 19, a drive sprocket 32 is fixed to the output shaft of the stirring motor 31, and a chain 33 is hung between the driving sprocket 32 and the driven sprocket 29. It has been turned.
[0038]
A heater 34 is provided at the bottom of the outer surface of the garbage processing tank 24, and a first position is provided at a position buried in the garbage stored on the inner surface of the heater 34, for example, at the lower portion of the inner end face of the garbage processing tank 24 shown in the figure. A temperature sensor 35 and a second temperature sensor 36 are attached.
[0039]
The control unit 39 will be described with reference to FIG.
[0040]
The storage unit 44 stores and detects the relationship between the temperature difference detected by the first temperature sensor 35 and the second temperature sensor 36 and the moisture value (moisture value table) according to the type of garbage. Threshold values such as a moisture threshold value and a temperature threshold value for controlling the operating state of the dust disposal apparatus based on the moisture value are also set and inputted in advance.
[0041]
The arithmetic processing unit 43 is connected to the agitation motor 31 via a motor drive unit 45, connected to the heater 34 via a heater drive unit 46, and connected to the blower 48 via a blower drive unit 47, The drive of the stirring motor 31, the heater 34 and the blower 48 is controlled.
[0042]
Hereinafter, the operation will be described.
[0043]
The garbage is put into the garbage treatment tank 24, and the operation switch 15 is operated to operate the garbage treatment apparatus.
[0044]
The stirring motor 31 is driven, and the blower 48 and the heater 34 are driven. The first temperature sensor 35, the second temperature sensor 36, and the internal heater 38 are energized, and the first temperature sensor 35 detects the temperature in contact with the garbage (the temperature of the garbage). The second temperature sensor 36 detects the temperature of the garbage along with the heat generated from the internal heater 38. The rise in the temperature detected by the second temperature sensor 36 due to the heat generated from the internal heater 38 is affected by the amount of moisture in the garbage. That is, when the amount of moisture in the garbage is large, the temperature rise by the internal heater 38 is small, and when the amount of moisture in the garbage is small, the temperature rise is large.
[0045]
Signals from the first temperature sensor 35 and the second temperature sensor 36 are subjected to signal processing such as amplification, A / D conversion, and non-linear correction in the signal processing units 41 and 42, and are sent to the arithmetic processing unit 43. Is done. The arithmetic processing unit 43 calculates a temperature difference from the deviation of both signals, and calculates a moisture value corresponding to the temperature difference from a moisture value table stored in the storage unit 44. Further, the calculated moisture value is compared with the moisture threshold value stored in the storage unit 44.
[0046]
Further, the arithmetic processing unit 43 detects the temperature of the garbage based on the detection value from the first temperature sensor 35, and whether the temperature of the garbage being processed is appropriate for the temperature threshold stored in the storage unit 44. Determine if.
[0047]
If the detected moisture value exceeds the threshold value by comparing the moisture threshold value with the calculated moisture value, for example, if the detected moisture value is large (there is a lot of moisture), the heater 34 is connected via the heater drive unit 46. The amount of heat generated is increased to heat the garbage, and the agitation motor 31 is driven via the motor drive unit 45 to rotate the agitation blade 27 so that the garbage is brought into contact with sufficient air. The driving of the garbage processing mechanism unit 11 is controlled so that the moisture value is reduced, such as supplying sufficient air to the garbage processing tank 24 via the blower driving unit 47.
[0048]
Thus, since it is driven so as to maintain the optimum moisture value, activation of the microorganisms is promoted, and efficient garbage disposal can be performed.
[0049]
In the moisture detector 37, the first temperature sensor 35 is omitted and only the second temperature sensor 36 is used, and the temperature of the raw garbage is initially set in the state where the internal heater 38 is not energized by the second temperature sensor 36. Then, the temperature may be measured in a state where the internal heater 38 is energized, and moisture may be detected from the difference in detected temperature between the non-energized state and the energized state. Furthermore, the moisture detector 37 can detect moisture of any kind as long as it is an object containing moisture as well as moisture detection of garbage, and it is a cylinder made of wear-resistant and impact-resistant material. Since it has a structure in which a temperature detection unit such as a thermocouple is enclosed, moisture detection is possible even under adverse conditions such as a corrosive environment.
[0050]
【The invention's effect】
As described above, according to the present invention, the temperature detection unit and the heater that heats the temperature detection unit are provided, and the temperature that is not heated by the heater and the temperature that is heated by the heater can be detected. Since the moisture value is detected based on the detected temperature deviation, it is possible to detect the actual moisture of the object.
[Brief description of the drawings]
FIG. 1 is a block diagram of a moisture detection apparatus according to an embodiment of the present invention.
FIG. 2 is an external view of a dust disposal apparatus in which the moisture detection apparatus of the present invention is used.
FIG. 3 is a cross-sectional view showing a garbage disposal mechanism of the garbage disposal apparatus.
FIG. 4 is a control block diagram of the dust disposal apparatus.
FIG. 5 is a perspective view showing a conventional dust disposal apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Case 11 Garbage disposal mechanism part 13 Operation part 16 Display part 24 Garbage disposal tank 27 Agitation blade 31 Agitation motor 34 Heater 35 1st temperature sensor 36 2nd temperature sensor 37 Moisture detector 38 Internal heater 39 Control part 40 Moisture Detection device 41 Signal processing unit 42 Signal processing unit 43 Operation processing unit 44 Storage unit 45 Motor drive unit 46 Heater drive unit 47 Blower drive unit 48 Blower

Claims (2)

The temperature detection unit is liquid-tightly sealed in a corrosion-resistant and impact-resistant cylinder, and the temperature detection unit and the heater are directly in contact with the object to be processed, and the temperature detection unit and the heater are in a corrosion-resistant and impact-resistant cylinder. A second temperature sensor that is tightly sealed and is in direct contact with the object to be processed; the temperature detected by the first temperature sensor; and the temperature detected by the second temperature sensor in a state heated by the heater A moisture detection apparatus configured to detect a moisture value on the basis of a temperature deviation .   An arithmetic processing unit storing a moisture value corresponding to the temperature deviation; and calculating a temperature deviation between a temperature not heated by the heater and a temperature heated by the heater; The moisture detection apparatus according to claim 1, wherein the moisture value is detected based on the value.

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